On Thu, 17 Apr 2025 19:44:07 GMT, Chen Liang <li...@openjdk.org> wrote:
> Perf numbers for simple main: > Linking of `Class::forName0` down from ~152 to ~83 > > For calling little color management system > https://bugs.openjdk.org/browse/JDK-8313344: > JNI: ~45 > baseline panama: ~164 > patch: ~103 > > Also see #24705. make/jdk/src/classes/build/tools/classlist/HelloClasslist.java line 190: > 188: JAVA_BOOLEAN, ADDRESS, ADDRESS); > 189: Optional<MemorySegment> symbol = > lookup.find("Java_java_lang_Class_forName0"); > 190: var _ = linker.downcallHandle(symbol.orElseThrow(), signature); FWIW, passing just the signature should result in mostly the same code being generated. The address is just attached using MethodHandles::insertArguments. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/24742#discussion_r2050929830
